Braiding-machine.



- E. RANKN.

BRAIDING MACHINE. APPLICATION FILED Nov.2o,19s.

1,058, 100,a Patented Apr. 8, 1913.

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' E. RANKIN.

BRAIDING MACHINE. APPLICATION FILED N0V.2o,190s.

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Patented Apr. 8, 1913.

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E. RANKIN. BRAIDING MACHINE. APPLIQATION HLED No v zo, 190e.

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l BRAIDING MACHINE. APPLICATION FILED Nov, zo, 190e.

Patented Apr. 8, 1913.

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M40 t WW lof pivoted l EUG-ENE RANKIN, OF EAST SHEEN, ENGLAND, ASSIGNOR 0F ONE-HALF TOiGEORGE SPICER, O F LONDON, ENGLAND.

naarmate-MACHINE.

Specication of Letters Patent.

Patented Apr. e; iaia.

Application led November 20, 1908.v Serial N o. 463,706.

To all whom t may concern.'

Be it known that I, EUGENE RANKIN, a subject of the King of Great Britain and Ireland, residing at 9 Church avenue, East Sheen, in the county of Surrey, England, have invented certain new and useful Improvements in Braiding-Machines, Aof which the following is a, speciicatio This invention for improvements in braiding machines'relates to the method of effectingthe throwing and passage of the threads and consists in etfectin the throwing motion by means of a central sliding sleeve that is caused to rise and fall by means of links operated from a crank or cranks driven from the main driving shaft.

It also consists in the improved arrangement for providing the required gap and in the method of traversing or imparting inotion to the inner bobbin carriers while they are passing over the threads of the outer bobbins.

In olie way of carrying out this invention as applied to a machine in which an inner and outer set of bobbins are rotated in opposite directions by bevell gearing and in which the threads from the outer set of bobbins are passed over and under the threads of the inner bobbins, a rising and falling sleeve is' mounted to rotate with the bottom two Acountershrafts running on either side of the center axis of the machine. These countershafts are driven by a spur wheel mounted -on the maindriving shaft and mesh with spur wheels on the crank shafts. The bobbin carrier blocks are mounted to nately with rawn front the carrier blocks o form a gap for the passage of the threads.` The olloWing-more detailed description describes more particularly various ways of carrying out this invention.

In the accompanying drawings.: Figures 1 and 1a are vertical sectional views respectively of the opposite halves of a machine constructed according to this invention; Figs. 2 and are detail views showing forms of rocking arm and the operating pin on the trunnion collar; Fig. 4 is a side shafts i being arranged elevation partly in section taken in a plane at right angles to Fig. l; Fig. 5 is a plan view of a portion of the machine showing one of the upper bobbin carriers. f

spur or other suitable gear wheel ais mounted on a driving shaft b, and. operates two spur wheels c c mounted on double crank shafts d al, respectively,'said crank on either side of the central axis of the machine. Around the 4center support e of the machine and on the sleeve or extension of the bottom spider having a toothed sector or -quadrant l on the outer end lwhich gears with a similar sector m connected tothe throwing arms n so that each upward and downward stroke of the piston-like sleeve gcauses the throworl projections 0 which engage in suitably shaped slots 0 in the crank or arms 02 011 the inner end of the shafts for operating and connecting the throwing arms n thereby allowing the 'arms a dwell when reaching the top and bottom of a stroke.

It will be readily understood vfrom the foregoing description that g arms n may be dispensed with and the bottom or top spider can be operated directly in the manner of av piston thereby raising and lowering the bobbins mounted on the,

spider by means of the cranks before Vmentioned to pass the t reads.. In a further modification the gears also can be dispensed a single crank and link operating a lever connected by links on either side of the center shaft with the above mentioned sleeve by a trunnion collar or the like. It will be at once seen that by changing either sleeve, cranks or gears that different changes the throwinv throwing arms Vthe gap that lnormally in engagement with it so that when tion lof top and bottom spiders, means for rotating said spiders -in opposte directions, inner and outer sets of bobbins connecte with said spiders, respectively,'and rotated in opposite directions thereby, said bottom spiderhaving an upturned annular flange provided with a plurality of recesses, means in timing and consequently-pattern of braid can be effected. Y p

In operating the machine it is driven in the known manner through a bevel wheel p, which is ixed on the driving shaft b and which gears with the co-axially mounted bevel wheels p p2 on the top and bottom spiders 1' and f respectively to rotate the spiders in opposite directions. i

The lower bobbins f2` are suspended from the underside of the lower spider f andthe thread passes'through the center of the spindles .of the thread throwingv arms n and through the ends of the arms, as shown in Fig. 1. A plurality of recesses g are formed in the flange of the bottom spider f into which the thread from the lower bobbins f? is deposited during the assage of the top bobbin carrier blocks s thereover. The top bobbin carrier blocks sare mounted to slide on the `flanged edge of the bottomspider f and are preferably driven or actuated from the top spider portions of the machine through the intermediary of a `plurality of pivoted blades or levers t engaging in vertical slots or grooves u in the carrier blocks 8. The blades are ulcrumed in vsuitably shaped brackets e secured radially around the top spider. A sliding rod w having a roller lwvon its inner end and connected at its other end to the shortarm of the lever t is slidably mounted in a guide below each of the brackets u and is adapted to be reciprocated in its guide by acam 102 carried by and fixed on the bottom spider f. This cam w2 is referably octagonal in shape and is so positioned and arranged that the thread of the outer or lower bobbins deposit the threads exactly in a line with the projections or highest points of the arm as they meet the rollers rw on the sliding rods thus allowing the threads to pass in is formed beween the bobbin s and the lever arms t. Each block s has two lever arms t carrier blocks mounted to slide on of said bottom spider and having slots therein, a plurality 'of ,pivoted blades or levers on the upper spider adapted to engage `the slots in the bobbin carrier blocks, each lever having a spring retracted' sliding rod connected at, one endl thereto, a roller on the ree end o each' rod, and a cam mounted on and rotating with the bottom spider in position to ,alternately engage the rollers of said levers to form the required gap for the 'passage of the threads.

2. A braiding machine comprising an upper and lower spider `mounted to rotate in opposite directions, inner and outer sets of bobbin carriers supported by said spiders, bobbin carrier blocks mounted to slide on the bottom spider and provided with slots, the inner bobbins being supported by said blocks, brackets on the top spider, a sliding rod, a plurality of lever arms pivoted on said brackets and engaging at one end in a slot in the bobbin carrier blocks and at their other 'end with saidv sliding rod, a roller on said sliding rod, a cam on the bottom spider operating said lever arms to form al gap for the passage of the threads from the outer bobbins, and a rising and falling central vsliding sleeve for operating the outer threads.

3. ln a'braiding machine, the combination of top and bottom spiders, thread throwing arms carried by said bottom spider, means for rotating said spiders in opposite directions, inner and outer sets of bobbins, means for rotating said sets of loobbins in opposite directions,I a rising and falling central sliding sleeve operable to throw the threads of the outer bobbins and having pins thereon, crank arms engaging said pins on the sleeve to transmit the reciprocating motion 4of the sleeve to the 'thread throwing arms, said crank arms having angular slots to enable part of the movement of the sleeve to take place without operating the arms.

In testimony whereof l have affixed signature, in presence of two wlitnesses.

EUGENE RANKIN.

carrier blocks bobbin carrier one is withdrawn to form a gap to allow rthe thread to pass it will have been returned again into its slot in the block s before the other. armis withdrawn. This arrangement insures the blocks and bobbins being always positively driven by the top spider. spring w serves to hold the roller fw' on the rod fw yieldably against the faces ofthe cam 102. Y

1t will be readily seen that a cam of any desired shape may be employed according to the pattern of braid required. Witnesses:

l claim as my invention: H. D. JAMESON, l. In a braiding machine, the combina- EL. RAND.

for passing the threads comprisingl bobbin t e iangev bobbin carrier arms to pass the 

